Manufacture of egg cartons



Nov. 4, 1941. v -w. B. JONES 2,251,625

MANUFACTURE EGG CARTONS Filed May 15, 1939 z Sheets-Sheet 1 1 59/ P/Pl/VTED MA 775,? I W 20 7/ A/S'll Vl l/ UZLN/A d ABC. (:0. k

EGGS.

NOV. 4, 1941; w; B JONES MANUFAGTURE'OF EGG CARTONS I5 Sheeis-Sheet 2 Filed May 13, 1959 Patented Nov. 4, 1941 UNITED sm'r MANUFACTURE OF EGG CABTONS W. Bartlett Jones, Chicago, 111., assignor, by

mesne assignmen ts, to Consolidated Carton,

1110., Chicago, 111., a corporation of Illinois Application May 13, 1939, Serial No. 273,495

16 Claims.

The present invention relates tothc manufacture of cartons for eggs and the like. It has particular reference to collapsible cartons which are easily set-up for filling with eggs.

The invention relates particularly to that type of carton which may be and heretofore has been made from a blank consisting of a single piece of stock, out, scored, folded and united part to another part, to provide the carton.

The invention relates to those types of cartons above described of which the single-piece blank has carton panels at one end which provide the exterior or visible portions of the completed filled and closed carton, including the bottom thereof, and of which the single-piece blank has at the other end one or more panels which provide cellstructure in the carton and one or more glue- .strips for the structure of the carton.

April 4, 1939; Jones, 2,158,072, May 16, 1.939;

Boyle, 2,158,216, May 16, 1939.

Heretofore, cartons like those above described have been made of a one-piece blank. Beginning with the earliest structure listed (Carter No. 927,488), there is shown a blank on the end of which there is a narrow glue strip and a partition forming cross-carton panel with downfoldabie flaps. The remainder of the blank provides side-walls, bottom and cover. Such a blank may be folded in a sort of rolling action to provide a carton, and this may be done in a simple standard folding machine. Therefore, use of a single-piece blank was considered an advantage.

Other cartons, such as Rutledge No. 1,906,337, McWilliams No. 1,836,100, Bueschel- Nos. 1,940,292, 1,944,214, Petter No. 2,103,382, Bueschel 2,081,574, Jones No. 2,113,051, Bueschel No. 2,130,377, Bueschel No. 2,130,378, Jones Nos.- 2,152,649 and 2,158,072, and Boyle No. 2,158,216, have more panels in the cell-forming structure.

Jones No. 2,152,649, for example, has three cross-carton panels inside the carton, and four three-decked parallelogram structure carried inside the carton walls proper.

It is a general practice to provide printed matter on the cover, bottom and side-walls of these types of cartons, and not to provide it on the interior of the carton. For printing, it is necessary to provide a higher grade of stock than where no printing is desired. Carton stock commonly in use for printed cartons is of chip-board with a paper facing on one side to receive printing. Because of the practice of using one-piece blanks, the interior portions, particularly the down-foldable flaps, show two different surfaces, one of which is printable. It is provided at extra expense (compared to the permissible use of cheaper stock) merely as an incident to the use of a one-piece blank.

In printing sheet material. for cartons, a setup is used which prints more than one blank at a time. For example, a bank of blanks still in a single sheet, of 9 to 12, more or less, is printed in one operation. The one piece blanks necessitate that the carton-interior panels of the blank, go through the press which must provide blank area. This is ineilicient use of the press. Its capacity is lowered in accordance with the area of the blank devoted to forming the interior of the carton. Thus in a one-piece Jones structure of No. 2,152,649 approximately half of the blank is printed, and the other half is unprinted. Half the capacity of the press is wasted.

Another practice in the one-piece blank industry is to print the name and advertising of customers on the cartons. Therefore, it is a custom to begin the manufacture from stock sheets after the receipt of an order. .All the operations of manufacture are thus delayed. All the material for one order is specially processed for that order.

Another problem in the manufacture of some cartons. from a single one-piece blank, is the' carton like that shown in Jones No. 2,152,649,

or that in Bueschel No. 2,130,378.. There are too many folds required. However, if theblank is divided, one piece of it may be partly or complete- 1y folded, and then be combined with the other piece of the blank before any folding, or after folding. Thus one part, such as the part not requiring printing by order, may be run through other panels associated with them to provide a the machine in advance of an order, as in slack periods, to be ready for combination with the printed part. Where such a blank is not'at all or but partly folded, as aforesaid, it may be combined with a blank in a folding machine for folding both blanks simultaneously, thus permitting the machine to use fewer folding actions than a single blank for a like structurewould require. For example, where overtime must be paid, and. orders are filled in part on overtime, it is very advantageous that considerable of the work may be taken from stock'made on regular time. Thus, overtime might be entirely eliminated.

Many prior art types of cartons have a cut and scored panel which provides'the down-foldable flaps for the vertical cross partitions. In many arrangements of the parts of this panel it is characteristic that an end partition projects beyond the general line of the end of the' completed carton. In the folded carton, this end flap projects as a tongue from the end of the carton. Where such cartons are made of a single blank, much stock is wasted in order to provide the blank with this partition projecting beyond the general line of the blank. By use of the present invention, this waste may be reduced and limited to waste associated with but one of the blanks.

The present invention aims to improve the manufacture of cartons, to use less expensive stock for part of the carton, to make more efflcler'it use of printing presses and other machinery, to permit a portion of the carton to be processed in advance of the order, and to provide a carton portion which may be used in common with different orders.

Another-object of the invention is to provide a carton which has an interior structure of stock which does not present relatively different grades of stock at the two faces.

It is another object of the invention to limit the number of folds required in the operation of a machine when folding the carton proper from its blank, and to do so by providing at least two blanks, which on being assembled'for the said operation, and being united, in effect per- Fig. 7 is an enlarged view in cross-section oh the line 1-1 of Fig. 6 at station "E.

Fig. 8 is an end view of the carton formed in the diagram of Fig. 6, and of the collapsed carton of Fig. 5.

Fig. 9 is an end view of a different type of carton.

Fig. 10 is the carton of Fig. 9 in collapsed form.

Fig. 11 is an enlarged diagrammatic view following the manner of assembling the two blanks to form the collapsed carton of Fig. 10.

Fig. 12 is an alternative method of utilizing the blanks to form the carton of Fig. 9.

Fig. 13 is the collapsed carton of Fig. 9 as it is produced by the assembling scheme of Fig. 12.

Fig. 14 is a scheme for assembling a more complicated filler with an outer blank to form a carton as shown in Fig. 15. I

Fig, 15 shows in perspective a more complicated carton produciblewith parts represented by Fig. 14, said carton having a longitudinal dividing partition integral with the filler structure.

Fig. 16 is another type of carton having a longitudinal dividing partition forming apart of the filler structure.

The presentinvention may best be understood by explaining in detail the steps which may be practiced in converting sheet material into egg mit fewer folding operations than would a. single blank cut to provide the same type of structure.

Still another 'object is the provision of a carton having exterior surfaces of stock suitable for printing, and having a less expensive stock on the interior where printing is ordinarily desired on the outside and not on the inside.

Various other and ancillary objects and advantages of the invention will become apparent from the following description and explanation of the invention, given herein to illustrate the same in connection with the accompanying drawings in which:

Fig. 1 represents the printed side of a flat blank to form the outer walls of a carton.

Fig. 2 represents a cut, scored and flat blank which forms cell structure of the carton.

3 represents the blank of Fig. 2 in folded form as a parallelogram, the end being shown in cross-section as taken on line 3-3 of Fig. 2.

Fig. 4 represents the filler article of Fig. 3 collapsed to flatness.

Fig. 5 is an end view of the carton made by uniting the form of Fig. 3 with the blank of Fig. 1.

Fig. 6 is a diagrammatic representation of the steps of assemblingthe carton shown in Fig. 5, but in collapsed form.

cartons. Asstated above, there are many types of egg cartons which may be made in accordance with this invention, and only a few of them have been chosen for illustration. These show benefits obtained in varying degree. For the purpose of the main illustration I have chosen a carton and a procedure for it, wherein a filler for forming cells in the carton is cut andscored,'and folded into a tubular element as a collapsible parallelogram structure.

In the drawings in Fig. 1, the blank l0 represents a piece of chip board stock on which a facelayer I I of higher grade stock is placed to receive printing and to give a proper quality appearance to the filled carton, Printing is indicated at l2, merely to distinguish in the drawings the outer'side of the blank. Blank III is but one of a plurality of like blanks III which may be printed in multiple on a large sheet in a suitable press or color presses. This printing is preferably done before the outline of blank III has been formed in the sheet. By reason of the fact that practically all of the area of blank I0 provides the external faces of the closed carton, practically all of the sheet material providing multiple blanks III is printed. Heretofore, each such blank has been extended with much unprinted space, Thus, heretofore, fewer carton blanks were printed in one impression, and much available printing capacity has been lost.

After the sheet has been printed, it may be run through a second press to cut and score, and to sever each of the blanks I0 into the individual printed forms illustrated. It is also possible, for example, where quick drying inks are used, or where wet ink is protected, to run the sheet from the type to the cutting and scoring die in the same machine, thus further saving in operations. So out and scored, the blank illustrated has panels providing in succession as follows: locking cover flap it, cover panel l5, rear wall I'I, bottom i9, and front wall 2i. Between these panels in numerical order are scored lines for folding l4, l6,

l8 and 20. Line I6 is partly cut through for easy folding. These parts in the carton are clearly shown in Fig. 5.

The blank 25 (Fig. 2) represents chip board preferably without any improved surfacing, and in particular it is preferred to be of the same quality appearance on its two faces as the chipboard face of blank l0, Thus. in the finished egg carton, the interior has a uniform quality appearance.

Blank 25 may assume many forms to provide cells for eggs and the like, as is well known, and no new form of cell is herein disclosed or claimed. The formation illustrated is old. Parts are found in one or more patents, and other parts in different patents.

Merely for the purpose of complete description the details'of the blank are given:

Like blank In, it may be formed in multiple from a large sheet of stock. It may be made by punching single blanks. Because practically the entire area of blank 25 is subjected to cutting and scoring, the dies for each blank are smaller, and when they are in multiple more of them may be grouped in the same area. More eflicient use of the machines is possible. Because the areas of blanks l and 25 are nearly the same, about twice as many blanks of each type may be cut at once as may be cut in the same type of operations upon a continuous singlepiece blank combining the essential parts of blanks l0 and 25. This is important in connection with hurry orders under the present invention. As explained above, the filler may be already prepared. Only the printing and formation of the outer part must await the order.

This may be done at twice that capacity which is permitted when the whole carton is a single onepiece blank.

So out, each blank provides a glue-strip 21, a cross-partition-forming panel 29, a glue strip 3|, a spring-cushion false bottom panel 33, anda glue strip 35. Between these there are scored lines for folding, positioned in numerical order with the panels, and identified as 28, 30, 32 and 34, s

Panel 33 provides an egg rack as a false bottom in the carton. It is provided with'spring cushion structures to receive ends of eggs. Such structures are identified only generally by numerals 36, and are further explained in Bueschel Patent No. 1,940,292. Other forms of egg rack may be used.

Panel 29 is cut in a conventional manner to provide a series of do'wn-foldable flaps identified generally by numerals 31. Each flap 31 is hung to hinge on a triangular tab 38 at folding line 28, and a like tab 39 at folding line 39. It is noted that these flaps 31 remain in the plane of their panel 39, until such time as the carton is set up and ready to be filled with eggs. This is likewise true of the component parts of the panel 29 projects beyond the dimension which characterizes the rest of blank 25 (Fig. 2) and all of blank 10. This projecting end flap calls for waste in its blank, and because of the use of multiple blanks, like waste in blank I0 is avoided.

Fig. 5 shows the completed cartonset up to receive eggs. The panel 29 practically disappears in forming the series of vertical crosspartitions 31. Each of these is recessed at 40, to receive a separate and insertable longitudinal partition 4|, in a well known manner. This partition has tongues 42 which" pass through holes 43 irfthe egg rack.

In Fig. 6, there are shown diagrammatically the actions that occur in a machine completing the carton. Practically all the machine parts are omitted, as they are well known in principle. Such machines operate by feeding blanks rapidly from a feeder, or stack, to a belt or chain conveyer. This takes the carton alongthe length of the machine past stations where operations take place upon the blank. Therefore, the showing in Fig. 6 of numerous cartons in progressive.

stages towards completion, is a true representation of a unit aticertain stations important or desirable in illustrating the present invention.

. The folded filler of Fig. 4 is identified as 44 and a stack of them is identified as 45. Blanks I9 are stacked at 45 with printed side down. Stacks 45 and 45 are placed in a machine in connection with feeding mechanism, to permit filler 44 to be fed onto ablank l0, shown by dotted line 51. The various cartons represent stations in the machine selected for illustration, and for convenience are designated by capital letters from A to H inclusive. Station A represents an operation whichis not at all necessary,

but desirable. Disk represents means to break the scored folding line 20 so that front wall panel 2i of blank I will fold up easily in a hand operation to set up the carton, as described later.

' Panel 2| is merely folded up with respect to the spring cushion structures 33, which are adapted collapsed cartons in stacks. These stacks 'may be stored until time for combination with blanks l0.

Particular attention is directed to Figs. 1 and 2, and to the fact that the left end flap 31 of rest of the blank, and. then the blank I9 is.

flattened outagain as shown at station B. Here a glue-roll 5! represents any suitable means for applying adhesive in a strip 52 on an edge zone of front wall 2!. This zone is not wider than the glue-strip 21 of filler 44.

Station C represents the situation when a filler 44 has been superimposed on flat blank III, with the filler panel 21 on the adhesive strip 52. This requires care in securing coincidence. Stops 53 and 55 represent a corner-forming means into which blank l0 and filler 44 may be placed to secure proper coincidence. Ordinarily, these stops 'may be carried by the conveyer for each carton, but they are illustrated only at station C where they cooperate with the two blanks.

Station D shows a roll 55 as representative of means to press the superimposed blank and filler to secure adhesion. Broken line 55 merely connects stations D and E in the drawing to represent stations E and D in line in the machine. Station E shows a glueing device 51 to apply a strip of adhesive 58 onthe carton-interior face of wall l1 of blank I, at a position to be covered by glue strip 3| of filler 43. An enlarged cross-section of the assembly at station E on line 11 thereof is shown in Fig. 7. The parts are numbered as in'Figs. 1 and 2. It is noted that on panel l1 (Fig. 7) the I8 is broken by proper action of the machine to make a fold in blank Iii-on that line. The dotted lines showing panel l1 and glue area 53 indicate one position of panel I! and of the glue area 53, as this folding takes place, and how the glue area falls upon the panel or glue-strip 3| of filler 55. Station F shows the carton after such fold is completed. Only the folding line I is particularly designated. Station G shows means in the form of roll 69 for pressing the carton to cause the glue to bond the contacting parts I1 and 3|. This completes the carton as shown by numeral 60 at station H, and in endv view in Fig. 8.

In Fig. 8, the carton is completed as delivered from the machine. As sold a divider board M (Fig. 5) goes with it. In setting up the carton, pressure on the line I8, and the opposite region 6 I, causes the carton to open as a parallelogram, to the position shown in Fig. 5, when the flaps 37 may be folded down. This is readily accomplished in a well known way, using the divider board 4I as a tool for such action, simultaneously fixing the divider board in its proper place. It is to facilitate this manual setting up action that scored line 20 is broken at station A.

The above procedure is given in illustration as the preferred manner of making the type of carton described. It is to be understood that it is not the only sequence of events, and that various modifications may be made. For example, the filler 44 may be inverted, and made to fall in position to unite its panel 3| to panel II of blank III, as the first union. Then the blank I0 is folded on the same line 88 to bring filler panel 21 and panel 2i of blank I0 together for adhesion, as the second union. Thus the-same carton will be delivered from the machine in position inverted to that illustrated at station H.

Furthermore, the invention is not limited to feeding a parallelogram structure. The filler 44 of Fig. 6 may be such as to provide but one crosscarton panel, or more than two cross-carton panels. These specific variations are illustrated with reference to cartons of known structure otherwise.

Reference is made to the carton structure shown generally in Bueschel No. 2,105,181. This has no false bottom or egg rack. This carton has a panel resembling panel 29 (of blank 25, Fig. 2) to provide down-foldable flaps in the same manner. Only an end view (Fig. 9) of the carton is necessary to understand how it differs from the carton of Fig. 5.

The carton of Fig. 9 has a carton body blank 65 (Fig. 11) providing locking fiap 61, cover panel 60, rear wall II, rear floor inclined section I3, front floor inclined section I5, and front wall TI. Intermediate scored folding lines 68, I0, i2, I4

65 is folded on line 12 to lie over blank I8. Adhesive 00 is shown on 'wall II of the blank 66 before such folding. Dotted lines 9|v connect the coincident parts to be united by said adhesive. After folding and uniting, the carton is shown in Fig. 10.

Another method of assembly is shown which makes the completed carton collapsible in the direction opposite from that in Fig. 10, such modified form being shown in Fig. 13. The modified assembling operation is illustrated in Fig. 12. Blank I0 is placed on blank 65 so that adhesive 02 on rear wall panel II holds the blanks initially as shown in full lines. Adhesive 03 is placed on the edge of the inside of front wall I6. Blank I8 is folded through are 94 of 180 on scored line 80, and blank 65 is folded through arc '05 of 180 on scored line 16, each in such a way and I6 are designated. A second blank 18 (Fig.

11) is cut and scored to provide glue-strip l9, folding line I8, cross-partition panel 8|, folding line 82, and glue strip 83. Blank I8 is so cut and scored that it provides cross-partitions 84 (Fig. 9) which are slotted at 85, to receive a longitudinal dividing partition 86, with tongues 81 which pass through the fioor 'I3'I5 of the carton and suspend it in the inverted V-position shown.

Blanks 65 and 18 are assembled in much the same way as described for Fig. 6, and may be assembled in identical manner. This is illustrated in Fig. 11, to form the folded carton of Fig. 12. Blank 16 is folded on line 82 so that its panel 83 falls in adhesive 80 on front wall I5 of blank 65. Then, it lies fiat on blank 65 as shown (in exaggerated form) in Fig. 10. Blank that the adhesive 93 falls onto glue strip 83 in position 83*. Dotted line positions 11" and 83 show this sequence of folding. Then blank 65 is folded through arc194 of on line I0, giving the carton form of Fig. 13. The operation exhibited in Fig. 12, illustrates the combining of an unfolded blank with another blank,. so that the superimposed blanks are each folded, in the same operation of a folding machine.

The still more complicated structure of Jones No. 2,152,649 may be made in accordance with the present invention. The important feature of this structure is that the longitudinal partition is not separately insertable, but is formed by down-folded fiaps from a cross-carton panel positioned in the carton above the usual uppermost panel which provides the cross-partitions as down-foldable flaps. The structure also has a false-bottom egg rack. For the purposes of the present invention these three cross-carton panels are provided as three parallel decks of a parallelogram structure. The assembly is just as simple as that described for Fi 6. The only real difference is not visible, and is comprehended in the parallelogram structure.

The carton is shown in Fig. 15 and incidentally it indicates a divisible carton. The forms shown in Figs. 5 and 9 may likewise be divisible by using known modifications for that purpose. The carton of Fig. 15, shows a weakened line N! for division which is found also in the cover of the carton. This carton likewise comprises two blanks.

The carton body blank provides locking flap I03, cover panel I05, rear wall I01, bottom I00, and front wall III], with intermediate folding lines I04, I06, I08, and H0.

The second blank provides panels in succession as follows: glue-strip H3, cross-partition panel H5, glue-strip III, egg-rack 9, wide glue strip I2I, longitudinal partition panel I23, and wide glue strip I25. Intermediate these panels are the scored folding lines, H4, H6, H8, I20, E22, and I24.

The egg rack us is formed with cushions as shown in Fig. 2. The cross-partition panel I I 5 Fig. 14 represents combining the two blanks as described for Fig. 6. The blank for the filler is folded as a closed parallelogram structure. Adhesive llll is placed on panel III (front carton wall) and the filler panel I25 is united to it as shown. Then adhesive Ill is placed in'an appropriate position on panel IlIl (rear carton wall) and the filler panel I25 is united to it as shown. Then adhesive I is placed in an appropriate position on panel IIII (rear carton wall), and the flat blank folded on line I08, whereby the adhesive strikes and secures filler panel I2I. Dotted lines I42 connect the areas, thus united.

Fig. 16 represents the end view of a carton of the type disclosed in Bueschel No. 2,130,378. It is essentially like the carton of Fig. 5, except that the false bottom is not continuous as a sheet across the carton. Rather, it is modified to provide one or more vertical webs which may either support the false bottom, or divide the egg space longitudinally, or both. as shown. The egg rack sections are not strictly parallel with the remaining panels, but are offset to give leverage to move the said vertical webs on opening the carton. For the purpose of identification the carton illustrated has a blank which provides cover fiap I5I, cover panel I53, rear wall I55, bottom I51 and front wall I59. The folding lines are: I 52,

I54, I56, and I58. The filler may be made in any lapsible as a parallelogram structure, although this is not true in the geometrical sense of the word.

The carton of Fig. 16 is difiicult to make in a single machine from a single blank. But where the blanks are divided as herein disclosed, the filler section may be readily made in a single machine, and the filler combined with another blank, as in Fig. 6.

The preferred operations in accordance with this invention have been described with reference to several types of cartons. It will be apparent to those skilled in the art how the invention may be applied to other cartons not particularly described. Advantages of the invention are increased capacity of machines, economy in stock, simplification of final action, and economy in time. Simplification of final action is india continuous fiat blank, or the blanks may be pieced together away from a folding machine to build up a two-piece blank which may be stacked for feeding to a folding machine. All these methods will produce the same carton described, and all these methods are but a variation of the invention herein disclosed, and claimed.

The term cover as used in the specification and claims is intended to comprehend a cover panel with or without a flap, which may be a locking flap as commonly employed.

Reference is made to a divisional application Serial No. 333,581, filed May 6, 1940.

I claim:

1. The method of making collapsible cartons for eggs and the like which comprises cutting and scoring a sheet of carton stock to provide a blank having a series of panels for providing in the order from one end of the cut blank, as follows: a cover, a rear wall, a bottom, and a front wall; cutting and scoring another sheet of carton stock to provide a second blank having a plurality of panels for folding to form inside the completed collapsed carton. a folded parallelo- "gram structure to extend across the carton and a cut and scored to form cells, forming said second cated by the fact that to complete any of the I cartons herein described, but one fold is necessary, assuming the fillers to be stock articles.

sive stock may go into the filler. The blanks may be fed fiat to a machine and be combined as described in a folding machine to produce The carton of Fig. 15'

remaining sides of said parallelogram structureto complete a parallelogram structure including in order the rear wall, the bottom and the front wall panels of the first blank.

2:. The method of making collapsible cartons for eggs and the like which comprises cutting and scoring a sheet of carton stock to provide a blank having a series of panels for providing in the order from one end of the cut blank as follows: a cover, a rear wall, a bottom, .and a front wall; cutting and scoring another sheet of carton stock to provide a second blank having a plurality of panels to form inside the completed collapsed carton a folded parallelogram structure adapted for forming cells, folding said second blank to provide a collapsible parallelogram structure, superimposing the collapsed parallelogram structure onto the other fiat blank. uniting the front wall panel of the flat blank with the corresponding panel'of the parallelogram structure. folding the fiat blank over onto the parallelogram structure on the line between the bottom panel and the rear wall. and uniting the rear wall to the corresponding panel of the parallelogram structure.

3. The method of makingcollapsible cartons for eggs and the like which comprises cutting and scoring a sheet of carton stock to provide a blank having a series of panels for providing in the order from one end of the cut blank as follows: a cover, a rear wall, a bottom, and a front wall; cutting and scoring another sheet of carton stock to provide a second blank having five panels in the blank in the order: narrow panel, cross-carton panel, narrow panel, crosscarton panel, and a narrow strip for overlapping the first mentioned panel toform a parallelogram structure adapted to form cells; folding said second blank to provide a collapsible parallelogram structure, superimposing the collapsed parallelogram structure onto the other fiat blank, uniting ture, folding the fiat blank over onto the parallelogram structure on the line between the bottom panel and the rear wall, and uniting therear wall to the corresponding panel of the parallelogram structure.

4. The method oi. making collapsible cartons for eggs and the like which comprises cutting and scoring a sheet of carton stock to provide a blank having a series of panels for providing in the order from one end of the cut blank as follows: a cover, a rear wall, a bottom, and a front wall; cutting and scoring another sheet of carton stock to provide a second blank having seven panels in the blank in the order glue-strip, cross-carton panel, wide glue strip, cross-carton panel, narrow glue-strip, cross-carton panel, and glue strip; folding said second blank to provide a collapsible parallelogram structure having said three cross-carton panels as parallel decks; superimposing said collapsed parallelogram structure on the first-mentioned blank, uniting the front wall of the first blank with the corresponding glue-strip areas of the collapsed parallelogram structure, folding the first blank over onto the parallelogram structure on the line between the bottom panel and the rear wall, and uniting,

the rear wall to the corresponding glue-strip areas of the parallelogram structure.

5. The method of making collapsible cartons for eggs and the like which comprises cutting and scoring a sheet of carton stock to provide a blank having a series of panels for providing in the order from one end of the cut blank as follows: a cover, a rear wall, a'bottom, and a front wall; cutting and scoring another sheet of carton stock to provide a second blank having seven panels in the blank in the order glue-strip, cross-carton panel, wide glue strip, cross-carton panel, narrow glue-strip, cross-carton panel, and glue strip; folding said second blank to provide a collapsible parallelogram structure having said three cross-carton panels as parallel decks; superimposing said collapsed parallelogram structure on the first-mentioned blank, uniting one wall of the first blank with the corresponding side of the collapsed parallelogram, folding the first blank to bring the second wall of the first blank onto the parallelogram structure, and uniting said second wall with the side of the parallelogram structure which is opposite that side united to the first-united wall of the first blank.

6. The method ofmaking collapsible cartons for eggs and the like which comprises cutting and scoring a sheet of carton stock to provide a blank having a series of panels for providing in the order from one end of the cut blank as follows: a cover, a rear wall, a bottom, and a front wall; cutting and scoring another sheet oi carton stock to provide a second blank having five panels in the blank in the order: narrow panel, cross-carton panel, narrow panel, cross-carton panel, and narrow panel for overlapping the first-mentioned panel to form a parallelogram structure adapted to form cells; folding said second blank to provide a collapsible parallelogram structure, superimposing said collapsed parallelogram structure on the first-mentioned blank, uniting one of the wall panels of the first blank with the corresponding side of the collapsed parallelogram, foldingthe first blank to bring the second wall of the first blank onto the parallelogram structure, and uniting said second wall with the side of the parallelogram structure which is opposite that side united to the firstunited wall of the first blank.

7. The method of making collapsible cartons for eggs and the like which comprises cutting and scoring a sheet of material to provide a blank having panels to provide the exterior of the closed carton; cutting and scoring a sheet of material to provide a second blank having at least one panel for the interior of the closed carton; superimposing the two blanks prior to completing the folding of the first blank, uniting the superimposed blanks with the second blank united to the first blank at a panel corresponding to the'interior of the carton, folding the first blank to include the two blanks in a collapsed form of the carton, and uniting the two blanks at their faces which are coincident in the set-up position of the carton.

8. The method of making collapsible cartons for eggs and the like which comprises cutting and scoring a sheet of materialto provide a blank having panels to provide the exterior of the closed carton; cutting and scoring a sheet of material to provide a second blank having at least one panel for the interior of the closed carton; uniting the second blank to the first blank on a portion thereof which is on the interior of the completed carton, and folding and further uniting the blanks to provide a collapsed carton body.

9. The method of making cartons for eggs and thelike which comprises printing a sheet of carton stock to provide therein the printing fora plurality of blanks each providing in sequence: a cover, a rear wall, a bottom and a front wall of a carton; cutting and scoring said multipleblank sheet to form and sever the individual blanks; cutting and scoring a second sheet of carton stock to provide a plurality of individual blanks each adapted to provide cell-forming structure in the ultimate carton and including at least one cross-carton panel and two glue strips including said cross-carton panel between them; uniting one of said glue strips to the carton-interior face of one of the walls of the first blank in position for carton formation; folding the combined blanks to bring the other glue strip of the second blank into contact with the other wall of the first blank; and uniting said blanks at said region of contact.

10. The method of making cartons for eggs and the like which comprises printing a sheet of carton stock to provide therein the printing for a plurality of blanks each providing in sequence: a cover, a rear wall, a bottom and a front wall of a carton; cutting and scoring said multiple-blank sheet to form and sever the individual blanks; cutting and scoring a second sheet of carton stock to provide a plurality of individual blanks each adapted to provide cellforming structure in the ultimate carton and including at least one cross-carton panel and providing a cover, a rear wall, a bottom and a front wall of a carton; cutting, scoring and shaping sheet material to provide a fiat filler having a continuous series of panels some of which are positioned to be united to said blank in forming a carton, the series of panels in the filler in the carton extending in the same direction as the series of panels in the blank; and uniting said filler in fiat form to said blank and folding said blank, whereby to provide av collapsed carton capable of being open to receive contents.

12. The method of making collapsible cartons for eggs and the like which-comprises cutting and scoring a sheet of carton stock to providea blank having a series of panels for providing in the order from one end of the cut blank as follows: a cover, a rear wall, a bottom, and a front wall; cutting and scoring another sheet of carton stock to provide a second blank having I two attaching strips and between them a panel cut and scored to provide down-foldable flaps to form vertical transverse partitions in the egg carton, one of said fiaps in the cut-and-scored panel projecting beyond the edge of the assembled carton whereby the said panel of the second blank is of greater dimension than the first blank in the direction of the length of the carton, the widths of the cover, said panel and said bottom being substantially equal, and uniting said attaching strips to the rear and front walls to form a. parallelogram structure including said panel, said bottom, and at least portions of said front and rear walls. 13. The method of making collapsible carton for eggs and the like which comprises cutting and scoring a sheet ofcarton' stock to provide a blank having a series of panels for providing in the order from one end of the cut blank as follows: a cover, a rear wall, a bottom, and at least a portion of a front wall; cutting and scoring another sheet of carton stock to provide a second blank having an attaching strip, at least a'portion of a front wall and between said strip and said portion a panel cut and scored to provide down-foldable flaps to form vertical transverse partitions in the egg cart-on, one of said flaps in the cut-and-scored panel projecting beyond the edge of the assembled carton whereby the said panel of the second blank is of greater dimension than the first blank in the direction of the length of the carton, the widths of the cover, said panel and said bottom being substantially equal, and uniting said attaching strip to the rear wall, and said front-wall-portion of the second blank to" the front-wall-portion of the first blank to form a collapsible parallelogram structure comprising said bottom, said partitionforming panel and at least portiJns of the front and rear walls.

14. The method of making a collapsible carton for eggs and the like having a structure comprising panels for providing in the order: cover, rear wall, bottom, front wall, cut "and scored crosspartition-forming panel and attaching strip united to the rear wall, in which carton the said cross-partition-forming panel has an unfolded flap projecting from the collapsed carton, said projecting flap being down-foldable to provide a cross partition defining an egg cell at the end of the carton, which comprises cutting and scoring a plurality of blanks to provide said parts, the blank providing the said crosspartition-forming panel being of greater dimension than the remainder of the plurality of blanks in the direction of the length of the carton, and in forming the carton uniting said blanks to form a continuous blank providing the panels in the said order, whereby to avoid wastage 'ofmaterial in forming the said remainder of the blanks. v

15. The method of making collapsible cartons for eggs and the like which comprises forming two blanks by cutting and scoring sheet material, said blanks when united being such as to provide a carton having at least the following principal panels in sequence: cover, back wall, bottom, front wall, egg-cell-forming cross panel, and false bottom, a first blank including all the exterior panels of the closed carton, and a second blank excluding exterior panels of the closed carton and including a glue strip/,to unite the said second blank to the first blank at a cartoninterior face of the first blank, so uniting the glue strip of thesecond blank to the interior face of the first blank in position such that said two blanks fold together in folding the first blank to carton form, and folding and uniting the parts of the united blanks to complete the carton.

16. In the formation ofv cartons from blank sheet stock by a series of successive folding operations on a linearly moving unit to be folded to produce parallel folds in the completed carton,

the steps which comprise providing a plurality of blanks for union-to provide the carton, superimposing and uniting the blanks in relation ship to produce a unit to provide the carton,

andsubjecting the unit to successive folding operations, whereby superimposed blanks are simultaneously folded in producing the carton.

W. BARTLETT JONES. 

